{"id":"https://openalex.org/W2909979296","doi":"https://doi.org/10.1109/itw.2018.8613466","title":"Fronthaul Data Reduction in Massive MIMO Aided C-RAN via Two-timescale Hybrid Compression","display_name":"Fronthaul Data Reduction in Massive MIMO Aided C-RAN via Two-timescale Hybrid Compression","publication_year":2018,"publication_date":"2018-11-01","ids":{"openalex":"https://openalex.org/W2909979296","doi":"https://doi.org/10.1109/itw.2018.8613466","mag":"2909979296"},"language":"en","primary_location":{"id":"doi:10.1109/itw.2018.8613466","is_oa":false,"landing_page_url":"https://doi.org/10.1109/itw.2018.8613466","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2018 IEEE Information Theory Workshop (ITW)","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5100340369","display_name":"An Liu","orcid":"https://orcid.org/0000-0002-3943-5234"},"institutions":[{"id":"https://openalex.org/I76130692","display_name":"Zhejiang University","ror":"https://ror.org/00a2xv884","country_code":"CN","type":"education","lineage":["https://openalex.org/I76130692"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"An Liu","raw_affiliation_strings":["College of Information Science and Electronic Engineering, Zhejiang University"],"affiliations":[{"raw_affiliation_string":"College of Information Science and Electronic Engineering, Zhejiang University","institution_ids":["https://openalex.org/I76130692"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103046175","display_name":"Xihan Chen","orcid":"https://orcid.org/0000-0002-6566-2318"},"institutions":[{"id":"https://openalex.org/I76130692","display_name":"Zhejiang University","ror":"https://ror.org/00a2xv884","country_code":"CN","type":"education","lineage":["https://openalex.org/I76130692"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xihan Chen","raw_affiliation_strings":["College of Information Science and Electronic Engineering, Zhejiang University"],"affiliations":[{"raw_affiliation_string":"College of Information Science and Electronic Engineering, Zhejiang University","institution_ids":["https://openalex.org/I76130692"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5004681822","display_name":"Wei Yu","orcid":"https://orcid.org/0000-0002-7453-422X"},"institutions":[{"id":"https://openalex.org/I185261750","display_name":"University of Toronto","ror":"https://ror.org/03dbr7087","country_code":"CA","type":"education","lineage":["https://openalex.org/I185261750"]},{"id":"https://openalex.org/I75717288","display_name":"Rogers (United States)","ror":"https://ror.org/05m9vrv91","country_code":"US","type":"company","lineage":["https://openalex.org/I75717288"]}],"countries":["CA","US"],"is_corresponding":false,"raw_author_name":"Wei Yu","raw_affiliation_strings":["The Edward S. Rogers Sr. Department of Electrical and Computer Engineering, University of Toronto"],"affiliations":[{"raw_affiliation_string":"The Edward S. Rogers Sr. Department of Electrical and Computer Engineering, University of Toronto","institution_ids":["https://openalex.org/I75717288","https://openalex.org/I185261750"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5073153992","display_name":"Vincent K. N. Lau","orcid":"https://orcid.org/0000-0001-7769-6008"},"institutions":[{"id":"https://openalex.org/I200769079","display_name":"Hong Kong University of Science and Technology","ror":"https://ror.org/00q4vv597","country_code":"HK","type":"education","lineage":["https://openalex.org/I200769079"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Vincent Lau","raw_affiliation_strings":["Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology"],"affiliations":[{"raw_affiliation_string":"Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology","institution_ids":["https://openalex.org/I200769079"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5071265062","display_name":"Minjian Zhao","orcid":"https://orcid.org/0000-0002-3020-2434"},"institutions":[{"id":"https://openalex.org/I76130692","display_name":"Zhejiang University","ror":"https://ror.org/00a2xv884","country_code":"CN","type":"education","lineage":["https://openalex.org/I76130692"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Min-Jian Zhao","raw_affiliation_strings":["College of Information Science and Electronic Engineering, Zhejiang University"],"affiliations":[{"raw_affiliation_string":"College of Information Science and Electronic Engineering, Zhejiang University","institution_ids":["https://openalex.org/I76130692"]}]}],"institutions":[],"countries_distinct_count":4,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5100340369"],"corresponding_institution_ids":["https://openalex.org/I76130692"],"apc_list":null,"apc_paid":null,"fwci":0.1309,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.52388286,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"5"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10936","display_name":"Millimeter-Wave Propagation and Modeling","score":0.9998000264167786,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13905","display_name":"Telecommunications and Broadcasting Technologies","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/2214","display_name":"Media Technology"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.758936882019043},{"id":"https://openalex.org/keywords/baseband","display_name":"Baseband","score":0.7403258085250854},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7188645005226135},{"id":"https://openalex.org/keywords/spatial-multiplexing","display_name":"Spatial multiplexing","score":0.5667527914047241},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.512869119644165},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.5101654529571533},{"id":"https://openalex.org/keywords/channel-state-information","display_name":"Channel state information","score":0.49664002656936646},{"id":"https://openalex.org/keywords/radio-access-network","display_name":"Radio access network","score":0.447922945022583},{"id":"https://openalex.org/keywords/multiplexing","display_name":"Multiplexing","score":0.44169580936431885},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.3976254463195801},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.34712788462638855},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.3307685852050781},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.2712979018688202},{"id":"https://openalex.org/keywords/base-station","display_name":"Base station","score":0.25833821296691895},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.18587416410446167},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.18504562973976135},{"id":"https://openalex.org/keywords/bandwidth","display_name":"Bandwidth (computing)","score":0.15709516406059265}],"concepts":[{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.758936882019043},{"id":"https://openalex.org/C65165936","wikidata":"https://www.wikidata.org/wiki/Q575784","display_name":"Baseband","level":3,"score":0.7403258085250854},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7188645005226135},{"id":"https://openalex.org/C85884896","wikidata":"https://www.wikidata.org/wiki/Q7574075","display_name":"Spatial multiplexing","level":4,"score":0.5667527914047241},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.512869119644165},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.5101654529571533},{"id":"https://openalex.org/C148063708","wikidata":"https://www.wikidata.org/wiki/Q5072511","display_name":"Channel state information","level":3,"score":0.49664002656936646},{"id":"https://openalex.org/C106365562","wikidata":"https://www.wikidata.org/wiki/Q3078360","display_name":"Radio access network","level":4,"score":0.447922945022583},{"id":"https://openalex.org/C19275194","wikidata":"https://www.wikidata.org/wiki/Q222903","display_name":"Multiplexing","level":2,"score":0.44169580936431885},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.3976254463195801},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.34712788462638855},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.3307685852050781},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.2712979018688202},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.25833821296691895},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.18587416410446167},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.18504562973976135},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.15709516406059265},{"id":"https://openalex.org/C207029474","wikidata":"https://www.wikidata.org/wiki/Q384018","display_name":"Mobile station","level":3,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1109/itw.2018.8613466","is_oa":false,"landing_page_url":"https://doi.org/10.1109/itw.2018.8613466","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2018 IEEE Information Theory Workshop (ITW)","raw_type":"proceedings-article"},{"id":"pmh:oai:repository.hkust.edu.hk:1783.1-96248","is_oa":false,"landing_page_url":"http://repository.hkust.edu.hk/ir/Record/1783.1-96248","pdf_url":null,"source":{"id":"https://openalex.org/S4306401796","display_name":"Rare & Special e-Zone (The Hong Kong University of Science and Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I200769079","host_organization_name":"Hong Kong University of Science and Technology","host_organization_lineage":["https://openalex.org/I200769079"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Conference paper"},{"id":"pmh:oai:repository.ust.hk:1783.1-96248","is_oa":false,"landing_page_url":"http://www.scopus.com/record/display.url?eid=2-s2.0-85062092019&origin=inward","pdf_url":null,"source":{"id":"https://openalex.org/S4306401796","display_name":"Rare & Special e-Zone (The Hong Kong University of Science and Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I200769079","host_organization_name":"Hong Kong University of Science and Technology","host_organization_lineage":["https://openalex.org/I200769079"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Conference paper"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.8600000143051147,"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":12,"referenced_works":["https://openalex.org/W1698719573","https://openalex.org/W1970767514","https://openalex.org/W1970830346","https://openalex.org/W2011836673","https://openalex.org/W2100755644","https://openalex.org/W2145412765","https://openalex.org/W2592549785","https://openalex.org/W2611749634","https://openalex.org/W2735815831","https://openalex.org/W2950790100","https://openalex.org/W3101609953","https://openalex.org/W6764235945"],"related_works":["https://openalex.org/W2265126353","https://openalex.org/W4313028534","https://openalex.org/W2588899857","https://openalex.org/W2238502947","https://openalex.org/W4327983820","https://openalex.org/W2511268924","https://openalex.org/W3011943308","https://openalex.org/W2952280370","https://openalex.org/W2791638519","https://openalex.org/W2474288807"],"abstract_inverted_index":{"In":[0],"massive":[1,19,50,86,132],"MIMO":[2,20,51,87,133],"aided":[3,52],"cloud":[4],"radio":[5,12],"access":[6],"network":[7],"(C-RAN),":[8],"plenty":[9],"of":[10,49,64,168,196,205],"remote":[11],"heads":[13],"(RRHs),":[14],"each":[15],"equipped":[16],"with":[17,171],"a":[18,25,33,61,101,122,143,161],"array,":[21],"are":[22,30,81],"distributed":[23],"within":[24],"specific":[26],"geographical":[27],"area":[28],"and":[29,136,175,178,198],"connected":[31],"to":[32,59,66,90,110,126,130,147,155,182],"centralized":[34],"baseband":[35,70],"unit":[36],"(BBU)":[37],"pool":[38],"through":[39],"fronthaul":[40,73,113,170],"links.":[41],"One":[42],"major":[43],"performance":[44,166],"bottleneck":[45,167],"in":[46],"the":[47,56,67,85,112,116,127,137,148,165,183,192,203,206],"uplink":[48],"C-RAN":[53],"is":[54,119,140,179],"that,":[55],"RRHs":[57,109],"need":[58],"transport":[60],"huge":[62],"amount":[63],"data":[65],"BBU":[68],"for":[69,84,191],"processings.":[71],"Existing":[72],"compression":[74,106],"methods":[75],"that":[76],"rely":[77],"on":[78],"fully-digital":[79],"processing":[80],"not":[82],"suitable":[83],"regime":[88],"due":[89],"their":[91],"high":[92],"implementation":[93],"cost.":[94],"To":[95],"overcome":[96],"this":[97],"challenge,":[98],"we":[99],"propose":[100,187],"two-timescale":[102,193],"hybrid":[103],"analog-and-digital":[104],"spatial":[105,157],"scheme":[107,208],"at":[108,121,142],"reduce":[111],"data,":[114],"where":[115],"analog":[117,197],"filter":[118,139],"updated":[120,141],"slow":[123],"timescale":[124,145],"according":[125,146],"channel":[128,151],"statistics":[129],"achieve":[131,156],"array":[134],"gain,":[135],"digital":[138,199],"fast":[144],"instantaneous":[149],"effective":[150],"state":[152],"information":[153],"(CSI)":[154],"multiplexing":[158],"gain.":[159],"Such":[160],"design":[162],"can":[163],"alleviate":[164],"limited":[169],"reduced":[172],"hardware":[173],"cost":[174],"power":[176],"consumption,":[177],"more":[180],"robust":[181],"CSI":[184],"delay.":[185],"We":[186],"an":[188],"online":[189],"algorithm":[190],"non-convex":[194],"optimization":[195],"filters.":[200],"Simulations":[201],"verify":[202],"advantages":[204],"proposed":[207],"over":[209],"state-of-the-art":[210],"baseline":[211],"schemes.":[212]},"counts_by_year":[{"year":2020,"cited_by_count":1}],"updated_date":"2026-04-19T08:26:33.389920","created_date":"2025-10-10T00:00:00"}